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Finding the Fourth Proportional to 18,047.06, 27,063.42 and 6,947.60

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Solution

The fourth proportional to 18,047.06, 27,063.42 and 6,947.60 is: 10,418.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,047.06 : 27,063.42 = 6,947.60 : x
  2. Step 2: Convert to fraction form
    18,047.06/27,063.42 = 6,947.60/x
  3. Step 3: Cross multiply
    18,047.06x = 27,063.42 × 6,947.60
  4. Step 4: Simplify right side
    18,047.06x = 188,025,816.79
  5. Step 5: Solve for x
    x = 188,025,816.79/18,047.06
  6. Step 6: Final answer
    x = 10,418.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.